Subtract coordinate traces (t1-t2).
t1 - t2
[t,i]=minus(t1,t2)
When operating on two coordinate traces, the MINUS function removes any matching coordinates of the second argument from the first. The resulting coordinate trace is sorted. If a second output argument is provided, then an index array i is returned such that t=t1(i).
>> t1=imat_ctrace('5y', '6rx', '3z', '4x-')
t1 =
'5Y+'
'6RX+'
'3Z+'
'4X-'
>> t2=imat_ctrace('4x', '3z', '2z-', '5y', '8x+')
t2 =
'4X+'
'3Z+'
'2Z-'
'5Y+'
'8X+'
>> t2-t1
ans =
'2Z-'
'4X+'
'8X+'
>> [t,i]=minus(t2,t1);
>> i
i =
3
1
5
>>